The photos are of the XV product which is smooth. When I did the Barracuda, I cut wedges into 2" stock, bent them together, then welding them back up. The curve is not as smooth as the XV design.
Regarding XV. They state out of stock, which may be defined differently than back order. My guess is that there is not much margin/profit in the product. If you have the capability to weld then in place, you have the capability to make them yourself.